Improvement in heating-ranges



l. LAWLUR. Heating Ranges.

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UNITED STATES PATENT GEEICE JOHN LAWLOR, OF NEW YORK, N. Y.

IMPROVEMENT IN HEATING-RANG-ES.

Specification forming part of Letters Patent No. 140,205, dated June 24, 1873; application filed December 9, 1872.

To all whom it may concern:

Be it known that I, J oEN LAWLOP., of the city, county, aud State of New York, have in vented a new and Improved Heating-Range, of which the following is a specification:

My invention consists in a certain arrangement of dampers and deflecting-plate with relation to compartments at the side of the air-heating chambers of the range, whereby I am enabled to control the direction ofthe currents of heated gases and other products of combustion so as to increase the temperature either in said air-chambers or in the ovens which are supported above the body of the ran ge proper, as herein described.

Figure l is a sectional elevation of my improved heating-range taken on the line a: .fr of Fig. 5. Fig. 2is a sectional elevation taken on the line y y of Fig. 5. Fig. 3 is a section on the line z z of Fig. 5. Figure 4is a partial horizontal section taken on the line o a of Fig. 2, and Fig. 5is a horizontal section taken on the line b b of Fig. 3. K

Similar letters ot' reference indicate corresponding parts.

Ais the tire-pot. B is a cold-air heating chamber at the back and each side of the tirepot, under the top plate C, into which the air to be heated comes up through the bottom of the range at D, and is discharged under the plates E, which compel it to come to the front plate, so as to be exposed to the side walls G of the fire-pot before escaping to the part of said chamber at the back of the firepot, from which (after being heated) itpasses up through the detachable iue H to a drum, I, whence it will be dischargedinto the room above. Said lue is behind the elevated chambers K, in

-lines in Fig. 5.)

which are arranged the ovens, in order to make room for the heating-chamber below, and into lwhich the products of combustion are con ducted by pipes Mforheating said ovens, after which they will pass off by the smoke-flue N. The products of combustion may pass over the plate C direct to the lines M M when the dampers O O are open and dampers P P are closed 5 but when the position of said danipers is reversed, said products will pass iirst down into the compartments or spaces S(at the side of the chamber B) under the plates Q, and thence up into lues M M, as shown by arrow in Fig. 1. Thus the direction of the current of heat may be varied according as it is desired to heat the air in chamber B more or less, or that of the ovens K. I preferably arrange a removable water-back to form one of the side walls G of the fire-pot, (as indicated by dotted The water-back will have pipe-connections a, and may be changed or reversed in position.

l do not claim, broadly, any of the features above described; but

I claim as new and desire to secure by Letters Patent- The independently-operatin g dampers O and P, the vertical deiiecting-plate Q, the side compartments S closed at the bottom, and the fines M, all constructed and arranged as shown and described, whereby the products of combustion may be caused to pass downward and then upward in said compartments on their way to the lues, as set forth.

JOHN LAWLOR.

Witnesses T. B.. MosHEE, ALEX. T. RoBEaTs. 

